Foldable vaso-occlusive member

• US 8,308,751 B2
• Filed: 01/09/2006
• Issued: 11/13/2012
• Est. Priority Date: 05/20/2002
• Status: Active Grant

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Stryker Corporation, Stryker Nv Operations Limited (Stryker Corporation)
• Inventors: Gerberding, Brent
• Primary Examiner(s): Jackson, Gary
• Assistant Examiner(s): BLATT, ERIC D
• Application Number:
  US11/328,872
• Publication Number:
  US 20060116716A1
• Time in Patent Office: 2,500 Days
• Field of Search: 606/200, 200/200
• US Class Current: 606/200
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12145 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 17/12154 having stretch limiting means
• CPC Class Codes: A61B 17/12168 having a mesh structure A61B17/1214 takes precedence
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526

Abstract

Vaso-occlusive devices for occlusion of a body cavity are provided. The vaso-occlusive devices include an elongate vaso-occlusive member having one or more fold lines. Methods of using the vaso-occlusive devices are also described.

Claims

1. A vaso-occlusive device, comprising:

an elongate vaso-occlusive member having a relaxed configuration in the shape of a helical coil and having one or more key-ways along said helical coil configured to form one or more fold lines on the vaso-occlusive member;

wherein

said vaso-occlusive member folds into a desired folded configuration when one or more portions of the vaso-occlusive device bear against one or more walls of a body cavity.

2. The vaso-occlusive device of claim 1, wherein the one or more fold lines are directional.

3. The vaso-occlusive device of claim 1, wherein the one or more fold lines are non-directional.

4. The vaso-occlusive device of claim 1, wherein the fold lines comprise both non-directional fold lines and directional fold lines.

5. The vaso-occlusive device of claim 1, wherein at least a portion of said key-way is disposed continuously along a portion of the vaso-occlusive member in a helically shaped pattern around the surface of the vaso-occlusive member.

6. The vaso-occlusive device of claim 1, wherein the vaso-occlusive member is made of a biodegradable material.

7. The vaso-occlusive device of claim 1, wherein the vaso-occlusive member is comprises a metal selected from the group consisting of platinum, palladium, rhodium, gold, tungsten, and their alloys.

8. The vaso-occlusive device of claim 1, wherein said vaso-occlusive member has a tertiary shape in a relaxed configuration, said tertiary shape selected from the group of a twisted figure-8, a flower-shape, a substantially spherical shape, a plurality of random loops, a vortex, or an ovoid.

9. A method for deploying a vaso-occlusive device, comprising:

providing a vaso-occlusive device comprising;

an elongate vaso-occlusive member having a relaxed configuration in the shape of a helical coil and having one or more key-ways along said helical coil configured to form one or more fold lines on the vaso-occlusive member;

wherein

said vaso-occlusive member folds into a desired folded configuration when one or more portions of the vaso-occlusive device bear against one or more walls of a body cavity;

placing said vaso-occlusive device within a lumen of a delivery catheter in said rectilinear relaxed configuration;

positioning the delivery catheter in or near an opening of a body cavity;

advancing said vaso-occlusive device within the lumen of the delivery catheter and into said body cavity until one or more portions of said vaso-occlusive device bears against one or more walls of said body cavity;

pushing the vaso-occlusive device subsequent to the step of advancing, thereby causing said vaso-occlusive device to fold into said desired folded configuration.

10. The method of claim 9, wherein at least one of said advancing and pushing steps comprises using a guidewire.

11. The method of claim 9, wherein the body cavity comprises an aneurysm.

12. The method of claim 9 wherein said key-way is disposed continuously along a portion of the vaso-occlusive member in a helically shaped pattern around the surface of the vaso-occlusive member.